The coming of Julius Cæsar in August, B.C. 55, with his legions of Roman soldiers to punish the men of Kent for having sent assistance to one of the Gallic tribes, the _Veneti_, then at war with Rome, was what led on to the subsequent subjugation of the whole of Britain. This did not, however, take place for nearly a century afterwards, as, on the Britons undertaking to pay tribute, the invaders withdrew. In A.D. 43 the Emperor Claudius appears to have looked at this country with an envious eye, and finally decided to annex it to Rome; and with this view he sent his General, Aulus Plautius, with an army of some 48,000 men, to subdue the natives, who were, however, found to be a race not easily conquered. After severe fighting, he entrenched himself on the bank of the Thames, where he was joined by the Emperor himself in the following year. Step by step, slowly but steadily, the invaders made their way northwards. The building of a line of forts by the Imperial Legate from the Severn to the Nene, thus dividing the country, led to a rebellion of the tribe of Cenimagni (or Iceni), the dwellers in what is now Norfolk or Cambridgeshire. In this case the natives were again unsuccessful; and in recording their defeat Tacitus[9] first mentions the Brigantes in terms which clearly indicate that even before this time they had given the Romans some trouble. The passage runs: "He (Ostorius Scapula) now approached the sea which washes the coast of Ireland, when commotions, begun amongst the Brigantes, obliged the General to return thither, as he had formed a settled determination not to prosecute any new enterprise till his former were completed and secure. The Brigantes, indeed, soon returned to their homes, a few who raised the revolt having been slain and the rest pardoned." The _Silures_, inhabiting the western part of Wales, under their King Caractacus, maintained a fierce resistance to Ostorius, but were ultimately compelled to bear the Roman yoke. At this period the Queen of the Brigantes was Cartismandua, whose betrayal of Caractacus has preserved her name from oblivion. She afterwards married a leader of the Silures named Venusius, who, according to Tacitus, was for some time under the protection of the Romans; but having been divorced from Cartismandua, she again took up arms against the invaders.